Razor Syntax, Statements, Loops etc. in ASP.NET MVC

Razor Syntax

In ASP.NET MVC, a markup syntax is used to embed C# code within HTML, allowing for dynamic content generation and server-side logic execution in views.

Razor Statements

C# code encased in @{} executes server-side logic in Razor views, including conditional checks, loop iterations, variable assignments, or method calls.

Conditional Statements

Control structures (@if, @else if, @else) are used in Razor views to execute code depending on predefined criteria, allowing for dynamic content display based on runtime data.

Switch Statement

A control structure (@switch) in Razor views that compares an expression to various case values, executes associated code blocks when a match is found, and includes a default case for unmatched values.

Loops in Razor

In Razor views, use constructs (@for, @foreach, @while) to iterate across collections or repeat code blocks based on given circumstances, allowing for dynamic presentation of repeated content.

For Loop

A looping structure (@for) in Razor views that iterates over a given range of values, executing a code block for each iteration; typically used when the number of iterations is fixed.

Foreach Loop

A looping structure (@foreach) in Razor views that iterates over elements in a collection or array, executing a code block for each element. This is widely used for iterating across dynamic lists or arrays.

While Loop

A looping structure (@while) in Razor views executes a code block as long as a specified condition is true; useful for iterating based on runtime conditions or user input.

Razor Helpers and Functions

Razor Helpers and Functions are utility methods and structures in Razor views (@Html, @Url, and @Html.Partial) that make it easier to render HTML elements, generate URLs, include partial views, and manage layout.

HTML Helpers

HTML Helpers (@Html.XYZ) in Razor views produce HTML markup for common elements such as links, forms, and inputs, resulting in clearer and more manageable view code.

Partial views

In ASP.NET MVC views, reusable Razor markup (@Html.Partial("_PartialViewName")) allows for the modularization of view logic and presentation, hence improving code reuse and maintenance.

Layouts

Razor views use master templates (@{ Layout = "~/Views/Shared/_Layout.cshtml"; }) to specify the basic structure, common elements (e.g. headers, footers), and styling for numerous views, ensuring consistent user experience across pages.

Razor Comments

Markup (@* Comment Text *@) in Razor views that provides non-rendered notes within the view code, allowing for documentation and developer communication without affecting the final HTML output.